1233220201 has 4 divisors (see below), whose sum is σ = 1245430404. Its totient is φ = 1221010000.

The previous prime is 1233220129. The next prime is 1233220211. The reversal of 1233220201 is 1020223321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 796368400 + 436851801 = 28220^2 + 20901^2 .

It is a cyclic number.

It is not a de Polignac number, because 1233220201 - 2¹¹ = 1233218153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1233220211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6104950 + ... + 6105151.

It is an arithmetic number, because the mean of its divisors is an integer number (311357601).

Almost surely, 2^1233220201 is an apocalyptic number.

It is an amenable number.

1233220201 is a deficient number, since it is larger than the sum of its proper divisors (12210203).

1233220201 is a wasteful number, since it uses less digits than its factorization.

1233220201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12210202.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1233220201 is about 35117.2350990222. The cubic root of 1233220201 is about 1072.3754836851.

Adding to 1233220201 its reverse (1020223321), we get a palindrome (2253443522).

The spelling of 1233220201 in words is "one billion, two hundred thirty-three million, two hundred twenty thousand, two hundred one".